CVE-2026-43391

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

0.12% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 2.4% of scored records. A rank, not a probability.

NVD base score

8.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-09-07.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-05-08 14:21Z5 MO AGO

Last updated

2026-09-07 15:44Z1 MO AGO

Reserved

2026-05-01

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Weaknesses

• CWE-1220Insufficient Granularity of Access ControlBase

Data version

5.2

Document digest

cfa138d423e48024a24acc7c27054e0b12d7e70ab83cbfa42679637f4de6d907

• git.kernel.orghttps://git.kernel.org/stable/c/24ebaf6676ae4f74f4856eb645959b15e62bc1b4
• git.kernel.orghttps://git.kernel.org/stable/c/1797ee11451f1b2be69863a9f5bd43b948813fdf
• git.kernel.orghttps://git.kernel.org/stable/c/d2324a9317f00013facb0ba00b00440e19d2af5e